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I’m kinda lost on this crank pin thing. I just can’t see how at this scale and range of rpm running, that hollowing the crank pins would affect balance that much. Now maybe at a several thousand rpm Cletus
What kind of bearings are used in both ends of the conrods?Bill
Ok, so made as part of the rods then as opposed to inserts ( like split bearings). In which care bronze should wear better. Just my opinion though.Bill